Sizing help

Rings here are listed in US sizes. If a piece can take a different size than those listed, the specification says so — and if you are unsure, ask before ordering. Some pieces can be sized after the fact; some cannot without harming the stone, and I will tell you which is which honestly.

Three ways to find your size

01 The certain way. Any jeweller will measure your finger in two minutes, usually for nothing. Ask for your US size, measured snug.

02 With a ring you already own — one that fits the intended finger. Lay it over the circles on the printable sizer, or measure its inside diameter in millimetres and read the chart below.

03 With a strip of paper. Wrap it where the ring will sit, mark where it overlaps, and measure the millimetres against a ruler — that is the circumference column. Measure at the end of the day; cold fingers run small. If your knuckle is the widest part, measure that too and split the difference.

The printable sizer

A one-page PDF with true-scale ring circles and a measuring strip. Print it at 100 per cent — “Actual size”, never “Fit to page” — then check it against the sheet's own ruler before trusting it: the bar must measure exactly 50 mm, and a bank card must fit its outline.

Download the sizer (PDF)

Conversion chart

US size	Inside diameter	Circumference	Closest UK
4	14.9 mm	46.7 mm	H
4½	15.3 mm	48.0 mm	I
5	15.7 mm	49.3 mm	J½
5½	16.1 mm	50.6 mm	K½
6	16.5 mm	51.9 mm	L½
6½	16.9 mm	53.1 mm	M½
7	17.3 mm	54.4 mm	N½
7½	17.7 mm	55.7 mm	O½
8	18.1 mm	57.0 mm	P½
8½	18.5 mm	58.2 mm	Q½
9	19.0 mm	59.5 mm	R½
9½	19.4 mm	60.8 mm	S½
10	19.8 mm	62.1 mm	T½

UK equivalents are the nearest half size — treat them as a guide, not a guarantee.

Wide bands wear small. A band four millimetres or wider sits taller on the finger and wears roughly a half size smaller than a slim one. Each piece lists its band width in the specification — if it is 4 mm or more, lean toward the half size up.

Still unsure? Write to the studio — with your paper-strip millimetres if you have them, and we will settle it together.